Window scaffold



May 22, 1923. 1,456,362

G. L. CRESSON WINDOW SCAFFOLD Filed Feb. 4, 1921 2 Sheets-Sheet 1 ,za f

a z z z 2 5 ?3 A2 l ammv (i'ealyelz (22 5507;

Patented May 22, 1923.

warren stares GEORGE L. CRESSQN, OF IVIILWAUKEE, WISCONSIN.

WINDOW SGAFFOLD.

Application filed February in exteriorly cleaning and painting windowsand in like operations, which may readily be arranged in operativeposition to afford a substantial support for the operation, and whichmay readily be adjusted to suit different constructions of windows,widths of sills or thicknesses of walls and the like, and which when notin use may be folded into comparatively compact form; and with thisobject in view the invention consists in a construction and combinationof parts of which a preferred embodiment is shown in the accompanyingdrawings, wherein Figure 1 is a side view of a device embodying theinvention applied in the operative position to a window sill.

Figure 2 is a plan view of the same.

Figure 3 is a front view,

Figures 4 and 5 are side views of modified and simplified forms of thedevice.

The device consists essentially of sill brackets having dependent innerends 11 carrying clamping screws 12 for engagement with the innersurface of the window casing, it being preferable to interpose felt orlike cushions 13 between the.brackets and the sill to avoid marring thelatter, side bars 14: carried at their inner ends by said sill bracketsand designed to support the flooring 15, a guard connecting the outerends of said side bars and consisting of the uprights l6 and a cross bar17, and obliquely disposed braces 18 extending from the sill brackets tothe upper ends of the uprights 16.

In the construction illustrated in Figures 1, 2 and 3 the sill bracketssupport hangers 19 having bearing screws 20 for contact with the outersurface of the wall below the plane of the window sill.- The hangers 19are adjustably connected with the sill brackets 10 thatthey may bearranged to suit the depth or horizontal measurement of the window sill.This adjustable connection comprises studs 22 upstanding on the hangersand engageable with any one of a series of holes 4, 1921. Serial No.442,465.

or openings 23 in the brackets, the desired able with the extremity ofthe hangers when the studs project through the desired holes oropenings. Besides bars 14 are bolted as at 241 to the hangers andthelatter are provided with supplemental braces 25 disposed in adownwardly and outwardly inclined position toward the lower extremitiesof the uprights 16. Also clamping screws 26 are employed in thisconnection, mounted in the braces 25 to bear upon the surface of theflooring 15 and thus hold the latter in proper relation with the sidebars 14.

In the preferred embodiment of the invention, the outer ends of the sidebars 14 are engaged by bolts 27 to which the outer ends of the brace 25are secured by means of nuts 28, and upon which are threaded the lowerextremities of the uprights 16 which are shown as of tubular form, withthe extremities of the cross bar 17 connected therewith by the anglebars 29 of whichthe arms are respectively fitted in the bores of saidcross bar and uprights, the upright arms of said angle bars extendingthrough eyes 30 on the upper outer ends of the diagonal braces 18.

Also as a supplemental means of stabilizing the structure dependentbraces may be employed, consisting of the downwardly and inwardlyinclined bars 31 pivotally connected as at 32 to yokes 83 at the lowerends of the bolts 27 and having shoes 34: for contact with the surfaceof the building wall 35, chains 36 extending upward from said shoes tothe platform or to the hangers 19 to limit the downward movement of saidsupplemental braces.

As shown in Figure 4 the supplemental pendent brace consisting of thebars 31 may be omitted when the weight to be carried by the bracket isrelatively light, or in other words in applying the bracket if deemedunnecessary this supplemental bracing means may be omitted.

Again as indicated in Figure 5, in the assembling of the parts of thebracket, should the structure of the building render the use of thehanger 19 objectionable, the side bars 14: employed to support the flooror platform may be attached directly to the sill brackets 10 by means ofbolts 37, in which event as will be obvious the pendent supplementalbrackets consisting of the bars 31 should be employed as a bracing meansfor the outer ends of the side bars 14, the outer upper ends of saidbars 31, as hereinbefore described, being connected with the yokes 32 atthe lower ends of the bolts 27.

Having described the invention, what is claimed as new and useful is l.A window scaffold having sill brackets provided with dependent innerends carrying clamping screws, side bars supported by the outer ends ofthe sill brackets for supporting a floor or platform, braces for theouter ends of said side bars, and a guard carried by said side bars andhaving uprights rising respectively therefrom and connected by a crossbar, bolts being extended upwardly through the outer ends of the sidebars and being engaged by the interiorly threaded lower ends of saiduprights.

2. A window scaffold having sill brackets provided with dependent innerends carrying clamping screws, side bars supported by the outer ends ofthe sill brackets for supporting a floor or platform, braces for theouter ends of said side bars, and a guard carried by said side bars andhaving uprights rising respectively therefrom and connected by a crossbar, bolts being extended upwardly from the outer ends of said side barsand the uprights of the guard being tubular and engaged at their lowerends with said bolts.

' 3. A window scafford having sill brackets provided with dependentinner ends carrying clamping screws, side bars supported by the outerends of the sill brackets for supporting a floor or platform, diagonalbraces fo the outer ends of said side bars, and a guard carried by saidside bars and having uprights rising respectively therefrom andconnected by a cross bar, said uprights and cross bar being tubular andbeing connected at their adjacent extremities by angle bars I of whichthe arms are fitted respectively in the bores thereof, said diagonalbraces having at their upper ends eyes for engagement by the dependingupright engaging arms of said angle bars.

4. A window scaffold having sill brackets carried thereby for engagingthe inner surface of a wall adjacent to the sill, hangers depending fromthe outer ends of said sill ture.

GEORGE L. CRESSON.

